I *think* this is one of the Libochovice patterns which isn't shown in the catalogues we've seen so far. It matches the candlestick 2021, with which I've seen it plus a ringholder, probably 2024, and pots 2022 and 2023 are also a match for these items. I'd have expected the tray to be 2020 based on their normal system, but 2020 is a slightly different pattern and a different shape. In fact 2020 is another oddity, as the catalogue shows the same shape as a tray I have, but with the same base pattern as yours is... see pics below for comparison..

Image from Libochovice catalogue used by kind permission of Marcus Newhall. Other image is my tray.

Your tray is another gorgeous one, love it. I think I know what pots, sticks and ring holder you mean, I've seen them accompanying your tray a couple of times, but not seen another example of mine anywhere. Interesting about the base patterns though, I think perhaps we can say my tray is "probably" Libochovice, even without a pattern number, based on your information?